bay blue-waters coastline colors colours currents distance distant expanse foliage foreground foreshore growth islands layers levels light national marine park natural ocean outcrop perspectives plants point promontory rock-formations rocks rocky sea seashore shade shadows shapes shorelines shores Sizes sound stones stony sunlight sunshine tides trees variety vegetation water waterline backdrop background beach coast coastal conservation conserve conserving contrast contrasting cultivation dune-flora dunes environment environmental flora grass grasses green greenery growing leafy leaves nature ocean-edge ocean-waterline path salt-resistant sand sand-dunes scrub track abstract appearance changing color colour dips ebb-and-flow Indian-ocean movement peaceful powerful pull ripples rippling salt-water scene seaside shore surface texture textures tide vast vibrancy vibrant view views wavelets waves western australia Australia blue coastal-landforms erosion escarpment faulting faults geological geology granite granitic gray grey hard hill iron iron-oxide landscape rock rough rugged rust rusty scarp-face seascape shoreline shrubbery shrubs slope steep-slope across the river activity bridge bushland dangers enjoyment ferry hilltop icon iconic Kings Park late afternoon manoeuvrability mobility Narrows Bridge outdoor outdoors outside park people Perth popular power river river ferry riverside safety security skill summer Swan River tourists transport transportation travel turn war memorial wash waterways alive animal aquarium aquatic arms biology brown bumps coral creature echinoderms endoskeletons fish five five-arms life marine outer-shell pitted pool rockpool save sea-creatures seastar star starfish tidepool tube-feet underwater wild wildlife clouds dark footprints froth frothing horizon seaweed sky tracks Western-Australia aqua clear deep near shallow shallows surfaces boat bouy rips